Date of Publication:2015-01-01

Journal:工程力学

Volume:32

Issue:6

Page Number:1

ISSN No.:1000-4750

Abstract:This paper investigates the optimal distribution of damping material in
   thin-plate structures considering transient response by using structural
   topology optimization method.Therein, an artificial damping penalty
   model similar to the SIMP model is adopted.In the topology optimization
   model, the relative densities of the damping material are taken as
   design variables and the volume constraint of damping material is
   considered.The design objective is to minimize the time integration of
   the structural transient response at specified positions.Since the
   structure exhibits a non-proportional damping effect, the vibration
   equations of the structure are solved by the time integration method.The
   design sensitivities of the vibrating structure under applied loads are
   calculated using the adjoint variable method.Then the topology
   optimization problem is solved with the method of moving asymptote
   algorithm, which is a gradient-based method.Numerical examples are
   presented for demonstrating the validity and effectiveness of the
   proposed optimization model and numerical techniques.

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